Means for attaching electric-lamp sockets.



W. S. STAPLEY. MEANS Fox ATTAGHING ELEQTRIG LAMP soGKBTs.

PPLIUATIQN FILED 001:1. 1908.r

` Patented Apr'. 6, 1909.

UNITED sTIATEs PATENT EEIC WILLIAM s. .sTAPLEn oF BRIDGEPORT, CONNECTICUT, AssIGNoR To BRIDGEIORT BRAss COMPANY-,. OF BRIDGEPORT,CNNEOTICUT, rA CORPORATION OF CONNECTICUT,

MIEANS FIOR A TTACHING LECTBIC-LAMP SOCKETS.

Speci'ication o t Letters Patent.

Patented April c, 190e.

l Tovall whom it may concerns Be it known that I, WILLIAM S. STAPLEY, av citizen of the United States, residing\ at' Bridgeport, county of Fairfield, State of Connecticut, have invented a new and useful Means for Attaching Electric-Lamp Sockets, of which the followin is a specification'.

This invention re at-es to electric lamp sockets and has for its object to provide a' simple and inen ensive means for attaching the sockets to gxtures, it being especiall important to avoid the use of screws and a l external means' of attachment and to' provide attaching means which may he easily and quickly operated to attach or detach a socket and which will lock thesocket securely in lace.

With t ese anu other Objects in view I have devised the novel attaching 'means which I will now describe, referring to the accompanying drawing forming a part of this specification and using-reference characters to indicate the several parts.

Iigure 1 is a sectional view showing the cap of a socket shell, the arm of a fixture and I my novel attachin means, as in use; and

.Fig 2 is an inverte plan View corresponding with I'ig. 1.

10 denotes the cap Oia lamp socket, 11 a fixture shown as provided with a central Opening 12 for the current wires (not shown) .and 13 the locking nut.

I have shown the cap only'of a lamp socket las the structure of the socket itself is wholly unimportant so far as the present invention is concerned. The ea is provided at its attaching end with a circular hub 14, above the hub with an inwardly turned Harige 15, below the huh with an Outwardl extending shoulder 16, and below the shou der with an inwardly-turned bead 17 which is formed after the nut is in place, as will be more fully eX lained.

he fixture is rovided at its end with an enough'to `turn freely therein. VAt the outer end of the nut isa an'ge 20 which is adapted to engage shoulder 16 on the hub of the cap.

I The face of the nut is provided with radial slots 21 for engagement byja suitable setting tool (not shown The assembling consists 1n placing the nut in hub l4-vof the cap and then securing it in should be understood that while the nut is free to he rotated in the socket by means of a setting tool.

ture and is then turnedto place. 't lange 15 of the cap is clamped between flange 19 on the ixture and the nut, and fiange 2() of the 'the cap. I thus" provi e'twostron points of supportfor the wei htof the soc et l'and the parts carried tl erehy,. namely: the liange of the cap, which is clamped between shoulder lof thel Cap which bears 'upon the flange of the nut, 1t leing understood that the height of the nut above its flange 'is pro portioned accurately to rovide tiese tw'o points of engagement .an support.

claim:

The colnhination with a fixture having an cap having a huh with an inwardly-extending flange adapted to engage th ange of the fixture and an outwardly-extending shoulder and a nut adapted to engage the huh of the fixture and to clamp' the' 'Harige of the huh of the cap hotween 'itself and the hub on the ixture and having an outwardlyextending flange adapted to engage the shoulder on the ,oap, said nut beingretained in placebyl closing in the metal of the cap below the flange of the nut.

In testimony whereof I' aflix my signature, in presence of two Witnesses.

lWILLIAM S. STAPLEY,

Witnesses:

AUKER S. LYHNE, ARTHUR H. MOORE.

held securely in place by the head it is leftV nut is turned closely a ain'st shoulder 16 of Having thuis descrlhed my invention I- place'by turning in head 17 from the metal 4 of the cap below the flange of the nut. It

The Operation will he readily understood from the drawing, The nut is placedvin engagement 'with threaded hub18 on'the fix-- the iiange of the fixture and the nut and the p externally-threaded hub and a Ilange, of a 

